I've owned mine for 9 years. A pack a day minimum, I also roll for others. Replaced the rubber tip twice. Nothing rolls better, except maybe the T2. Use quality tobacco and you won't have any problems.
This is my 3rd machine in the past 15 years. When I was having trouble turning the handle I contacted you and directed directly to Top-O-Matic. They suggested I lightly oil the machine on the underside. It seems to have helped with my problems.